Changing Seas
Sponges: Oldest Creatures in the Sea?
Season 8 Episode 801 | 26m 43sVideo has Closed Captions
Some scientists are suggesting that ctenophores are the oldest sea animals.
Recent DNA research has cast doubt on the theory that sponges were the first animals to branch off the “Animal Tree of Life,” a kind of family tree for all living and extinct animals on earth. Recently, some scientists are suggesting that ctenophores, also known as comb jellies, are an older lineage.
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Changing Seas is presented by your local public television station.
Major funding for this program was provided by the Batchelor Foundation, encouraging people to preserve and protect America’s underwater resources. Additional funding was provided by Diver’s Direct/Emocean Sports, inspiring the...
Changing Seas
Sponges: Oldest Creatures in the Sea?
Season 8 Episode 801 | 26m 43sVideo has Closed Captions
Recent DNA research has cast doubt on the theory that sponges were the first animals to branch off the “Animal Tree of Life,” a kind of family tree for all living and extinct animals on earth. Recently, some scientists are suggesting that ctenophores, also known as comb jellies, are an older lineage.
Problems with Closed Captions? Closed Captioning Feedback
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Sponges: Oldest Creatures in the Sea? - Trailer
Video has Closed Captions
Preview: S8 Ep801 | 3m 8s | Are sponges the oldest creatures in the sea? DNA research has cast doubt on that theory. (3m 8s)
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Changing Seas is presented by your local public television station.
Major funding for this program was provided by the Batchelor Foundation, encouraging people to preserve and protect America’s underwater resources. Additional funding was provided by Diver’s Direct/Emocean Sports, inspiring the...